Skip to main content

Blaxel

Category: AI Infrastructure

A cloud platform, described as the 'AWS for AI agents', to deploy, manage, scale, and monitor autonomous AI agents in production. It provides the toolbox and infrastructure to build and deploy agents efficiently. Blaxel was founded in 2024. The company is led by Paul Sinaï. Based in San Francisco, CA, USA. Team size: 9. Total funding raised: $7.3 million. Latest round: Seed, $7.3M, 2025-07, led by First Round Capital. Key investors include ["First Round Capital","Y Combinator","Liquid2","Transpose","Multimodal Ventures"].

Founded
2024
Headquarters
San Francisco, CA, USA
Team size
9
Total funding
$7.3 million

Value proposition

Provides robust, reliable, and scalable infrastructure specifically designed for deploying and managing large-scale, autonomous, agent-based systems in production environments.

Products and solutions

["Persistent Sandboxes — auto-suspend after 1s idle, resume in <25ms with full memory state","Agent Drive — distributed filesystem for sharing data across agents","Volumes — persistent storage across VM lifecycle events","Agent Hosting — co-host agent logic alongside sandboxes for near-instant latency","Batch Jobs — execute 1000s of background tasks in parallel","MCP Servers Hosting — deploy remote MCP servers","Unified AI Gateway — LLM routing, caching, rate limiting, and fallback","Observability — AI-native telemetry and monitoring"]

Unique value

Provides an end-to-end managed infrastructure layer specifically optimized for running complex, multi-agent systems at scale. Its architecture is purpose-built for the specific demands of AI agents, which generic cloud providers do not offer.

Target customer

AI builders, developers, and enterprises focused on deploying scalable and reliable AI agent solutions.

Industries served

["SaaS / Product Analytics","E-commerce Automation","Customer Service Automation","Financial Services","General Enterprise IT"]

Technology advantage

Features a proprietary orchestration engine, sandboxed virtual machines that boot in under 25 milliseconds, automatic scaling based on agent activity patterns, and APIs designed to be consumed by AI systems directly.

How they differentiate

Unlike developer-focused toolkits like LangChain or open-source solutions like CrewAI, Blaxel offers a full-stack, managed infrastructure platform focused on enterprise-grade reliability, security, and scalability. It is designed to be operated by AI agents themselves, not just host them.

Main competitors

["LangChain (LangSmith)","CrewAI / Autogen Studio","Vercel","Major Cloud Providers (AWS, Google Cloud, Azure)"]

Key partnerships

["Native sandbox provider integration with OpenAI Agents SDK (April 2026).","Partnership with Rippletide for enterprise agent safety and compliance (Jan 2026).","HuggingFace integration for model deployment (Dec 2025).","Webflow uses Blaxel sandboxes to power AI coding agent.","Polsia (YC X25) uses Blaxel as infrastructure foundation."]

Notable customers

["Webflow — uses Blaxel sandboxes to power their AI coding agent.","Polsia — uses Blaxel as infrastructure foundation for autonomous agent company.","Human Behavior, Vybe, Jazzberry — early YC batch customers.","Build0 — reduced sandbox costs by 80% using Blaxel.","SpawnLabs — enables real-time previews for coding agents.","Mendral — builds 24/7 AI DevOps engineer on Blaxel."]

Major milestones

["Graduated from Y Combinator's Spring 2025 batch.","Closed an oversubscribed $7.3M seed round in 2025.","Demonstrated platform capability to handle billions of requests per month.","Built a founding team of 6, all of whom previously built and sold a data platform to OVHcloud.","Launched persistent sandbox platform with sub-25ms cold starts.","Integrated as native sandbox provider in OpenAI Agents SDK.","Partnered with Rippletide for enterprise agent safety."]

Growth metrics

Serving more than 7.5 million requests per day and processing billions of Gb-sec per month. One customer runs over 1 billion seconds of agent runtime processing millions of videos.

Market positioning

Positioned as the go-to enterprise-grade 'AgentOps' platform for moving AI agent projects from prototype to production, effectively aiming to become the 'AWS for AI Agents'.

Geographic focus

Primarily North America and European markets.

Patents and IP

No public records of granted patents as of mid-2024.

About Paul Sinaï

Paul Sinaï brings over 13 years of deep expertise in cloud computing and data analytics platforms. He co-founded ForePaaS in 2015, creating a unified platform for data analytics, machine learning, and AI projects that served major enterprises including Total, Saint-Gobain, Pathé Gaumont, and Klépierre. ForePaaS raised $10 million in Series A funding from prominent VCs including Elaia Partners, Hi Inov, and Calao Finance. The company achieved significant scale and was successfully acquired by OVHcloud in 2022, becoming their entire Analytics product suite and serving over 1.6 million customers globally. His educational background from Université de Montréal combined with extensive hands-on experience building scalable cloud platforms positioned him uniquely to identify the infrastructure gaps in the emerging AI agent ecosystem, leading to the founding of Blaxel with his experienced technical co-founding team.

Official website: